401031149 has 2 divisors, whose sum is σ = 401031150. Its totient is φ = 401031148.

The previous prime is 401031133. The next prime is 401031167. The reversal of 401031149 is 941130104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 398202025 + 2829124 = 19955^2 + 1682^2 .

It is a cyclic number.

It is not a de Polignac number, because 401031149 - 2⁴ = 401031133 is a prime.

It is a super-3 number, since 3×401031149³ (a number of 27 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401031109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200515574 + 200515575.

It is an arithmetic number, because the mean of its divisors is an integer number (200515575).

Almost surely, 2^401031149 is an apocalyptic number.

It is an amenable number.

401031149 is a deficient number, since it is larger than the sum of its proper divisors (1).

401031149 is an equidigital number, since it uses as much as digits as its factorization.

401031149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 401031149 is about 20025.7621328128. The cubic root of 401031149 is about 737.4388873616.

The spelling of 401031149 in words is "four hundred one million, thirty-one thousand, one hundred forty-nine".